package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.simpleframework.xml.Path;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@Slf4j
@Api(tags = "菜品相关接口")
@RequestMapping("/admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){

        dishService.saveWithFlavor(dishDTO);
        //清理redis数据。新增菜品以后，redis的分类--菜品受影响。
        String key = "dish_" + dishDTO.getCategoryId();
        redisTemplate.delete(key);
        //这里删除了一个分类，没必要在这里重新重建缓存，查询的时候会自己创建。

        return Result.success();
    }

    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result<String> startOrStop(@PathVariable Integer status, Long id){
        dishService.startOrStop(status, id);

        //TODO 查询菜品所属套餐，删除套餐id的缓存

        Set keys = redisTemplate.keys("dish_*");
        redisTemplate.delete(keys);

        return Result.success();
    }

    @GetMapping("/{id}")
    @ApiOperation("菜品查询")
    public Result<DishVO> getById(@PathVariable Long id){
        DishVO dishVO = dishService.getByIdWithFlavor(id);

        return Result.success(dishVO);
    }

    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        //log.info("菜品分页查询：{}", dishPageQueryDTO);

        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);

        return Result.success(pageResult);
    }

    @PutMapping
    @ApiOperation("菜品修改")
    public Result update(@RequestBody DishDTO dishDTO){

        //log.info("菜品修改：{}", dishDTO);

        //看看修改的是不是套餐，如果是的话，删除套餐对应的
        //实际上不需要那么麻烦，全删了就行

        //清理redis数据。新增菜品以后，redis的分类--菜品受影响。
        String key = "dish_" + dishDTO.getCategoryId();
        redisTemplate.delete(key);



        dishService.updateWithFlavor(dishDTO);

        return Result.success();
    }

    @DeleteMapping
    @ApiOperation("菜品删除")
    public Result delete(@RequestParam List<Long> ids){

        //log.info("菜品删除：{}", ids);
        dishService.deleteBatch(ids);

        //直接删除所有dish_开头的缓存清理
        cleanCache("dish_.*");


        return Result.success();
    }

    //====================
    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }


    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);

        redisTemplate.delete(keys);


    }




























}
